Alright, let's work through 4080 times 9710 step by step
4080 × 9710 = 9710 × (4080)
+ 9710 × 0 producing 0
+ 9710 × 80 resulting in 776800
+ 9710 × 000 producing 0
+ 9710 × 4000 what gives us 38840000

= 39616800
